I’ve seen some pretty wacky structures that involve mechanically forcing permanent magnets together at different orientations to create assymetric magnetic fields that are strongest where they need to be or weak where they would cause problems. Like eddy currents in electric motor housing, or insufficient hold for chef’s knives.
I know motor windings have gotten pretty funky of late to do a little bit of this, but do they do multi tesla magnetic fields that use several different windings to create the same sorts of bias in field strength? The ITER windings seem to be an extremely mild form of this.
